Automobile-heater.



J. B. FRANCISCO. AUTOMOBILE HEATER. APPLICATION FILED mac 8. I916.

mwxim control.

JOSEPH B. FRANCISCO, 0F COLUMBUS, OHIO.

AUTOMOBILE-HEATER.

Specification of Letters Patent.

Patented Feb. 18, 1919..

Application filed December 8, 1916. Serial No. 135,890.

To all whom it may concern:

Be it known that l, JOSEPH B. FRANoIsoo, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Automobile' Heaters, ofwhich the following is a specification.

This invention relates to automobile heaters and is particularlydirected to that type of heater which utilizes the heat radiated by theexhaust line of the motor of the vehicle itself.

The main object of my invention resides in the arrangement andcombination of parts wherein the radiated heat from the exhaust line iscaused to heat a quantity of air, which latter is in turn so controlledthat its admission to the interior or seating portion of the vehicleitself, is under ready A further object of the invention resides in anarrangement of parts wherein an induced flow of air may be provided toinsure the proper tempering of the heated air before it is introduced tothe interior of the vehicle itself. I

Another object of my invention resides in the specific construction ofexhaust line wherein a chamber is formed about the same, through whichthe heated air passes.

@ther objects of the invention will become more apparent after a furtherdetailed description of the structure shown in accompanying sheet ofdrawings, in which similar characters of reference designatecorresponding parts, and in which:

Figure 1 is a view in vertical section through the front portion of amotor vehicle showing my invention applied thereto,

Fig. 2 is an enlarged vertical section through the rear portion of theexhaust line,

Fig. 3 is a section taken on line 33 of Fig. 2,

Fig. 4 is a front view of a part of my improved structure looking fromthe right of Fig. 1, and,

Fig. 5 is an end view of the structure shown in Fig. 2.

In Fig. 1, the engine shown at 1 may be considered of any desired type,and wherein the exhaust manifold is indicated at 2. This engine operatesin conjunction with the familiar type of radiator 3, through which aflow. of air is induced by means of the of the vehicle.

fan 1. This exhaust manifold merges with the exhaust pipe 5, whichlatter extends rearwardly beneath the vehicle body 6 to pass through themuffler shown at 7. My invention is directly concerned with this exhaustmanifold and, as shown in Figs. 2 and 3, a jacket 8 is cast about themanifold and pipe to form the space 9 between them, the manifold andpipe being directly oined by means of a coupling shown at 10. In orderto give sufficient volume to the space between the exhaust pipe ormanifold and the jacket 8, and in order to accommodate the particulartype of engine, the jacket is eccentrically cast about the exhaust pipeand manifold, as is indicated in Fig.

" 3. Suitably located at desirable points beare a pair of neath thefloor of the vehicle, register casings 11 and 12, each of whose rearwalls are provided with an opening 13 and whose tops are closed by meansof the grill structure 14. Each register casing further pivotallycarries a door or deflector 15, which latter may be oscillated by meansof a handle shown at 16 to either permit the entrance of the heated airto the interior of the vehicle or cause its passing out into theatmosphere beneath the floor The front end of the exhaust line isprovided with a funnel structure shown at 17 through which the cold airis admitted and the amount of opening of this funnel is controlled bymeans of the door shown at 18. This door may be operated through themedium of a cord 19 passing rearwardly into the interior of the vehicleover a series of pulleys, as is shown. Into this funnel, there also leada pair of auxiliary air pipes 20 and 21, each provided with a funnel 22at their open forward ends. These latter funnels may project beyond thefront of the vehicle, or may be located to the rear of the radiator, asis desired, their prime function being to permit the flow of a quantityof air into the space 9. It will be noted by an inspection of Fig. 1,that the major funnel 17 is located directly to the rear of the fan 1 sothat it is through this funnel that the major portion of the air passes.The rapid the funne1-17 into the space 9 causes a suction or inducedflow of air through the funnels 22 carried by the auxiliary pipes 20 and21. A small portion of air will naturally flow through these latterpipes, but an inflow of this air through.

duced flow is creatcdby the rapid passage of air through the funnel 17due to the fan 4, as has been described.

From the foregoing, it will be apparent that any desired temperatureWithin the vehicle itself may be maintained. This may be created bysuitably operating the deflector plates 15 which form a portion of theregisters 11 and 12 or the flow of air may be controlled by adjustingthe door 18 which controls the amount of opening of the funnel 17. Inthis manner, the heat which is normally radiated by the exhaust pipe andmanifold, is conserved to serve the useful purpose of maintainingcomfort within the vehicle.

lVhat I claim is:

1. In an automobile heater, the combination'with the exhaust pipe of anexplosive engine, a jacketpartially surrounding said pipe and having aforwardly located open funnel shaped end and a valved rear endcommunicating with the interior of a vehicle,

a fan driven by said engine and operable to force a current of airthrough said j aoket, and a plurality of open branch pipes extendingfrom positions outside of the influence of said fan and terminatingrearwardly within said jacket at a position adjacent to the funnelshaped end thereof, whereby an induced tiow of air through said branchpipes will be eiiected by the maincurrent of air passing through saidjacket.

2. in an automobile heater, the combination with the exhaust pipe of anexplosive engine, a jacket partially surrounding said pipe, and havingan open funnel shaped forward end and a valved rear end communicatingwith the interior of a vehicle, a fan driven by said engine and operableto force a current of air through said jacket, an

open branch pipe extending from a position outside of the influence ofsaid fan and terminating rearwardly within said acket at a positionadjacent to the funnel shaped end thereof, whereby an induced flow ofair through said branch pipe will be efiected by the main current of airpassing through said jacket, and adjustable valve means for controllingthe volume of air passing through the open funnel shaped end of saidjacket.

In testimony whereof l'aiiix my signature in presence of two witnesses.

" JQSEPH B. FRANCISCO. Vfitnesses:

W. HOLMES,

f. Mcfiomvncn.

